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Product Introduction

The slewing bearing seat is a large and extra large bearing seat that can withstand comprehensive loads and has a special structure. It is required to have the characteristics of compact structure, flexible rotation, and convenient installation and maintenance. Compared with ordinary bearing housings, slewing bearing housings have the following obvious features:

    1. Dimensions

    The diameter is usually 0.4m ~ 10m, up to 40m.

    2. High carrying capacity

    Generally, it can bear axial load, radial load and overturning moment load at the same time.

    3. Low speed

    The working speed is lower than 10r/min, and in a few cases, it does not rotate continuously, but only rotates within a certain angle and performs swinging motion.

    4. With bearing housing installation hole

    It can be fastened on the upper and lower supports with screws.

    5. No pivot

    The inner or outer ring has gears for driving the rotation.

    6. With smooth oil hole and seal installation.


The main structural methods of the slewing bearing seat are: four-point contact ball slewing bearing seat, double row angular contact thrust ball slewing bearing seat, interspersed cylindrical roller slewing bearing seat, interspersed tapered roller slewing bearing seat, three-row cylindrical roller fit Turntable bearing housing.

    According to whether it can have teeth and the distribution of gears, it can be divided into different structures such as gearless type, external gear type or internal gear type.

    Among them, the four-point contact ball slewing bearing housing has a high static load capacity, the intersecting cylindrical roller slewing bearing housing has a high dynamic load capacity, and the intersecting tapered roller slewing bearing housing can improve the support rigidity and rotation accuracy by applying a preload. The three-row cylindrical roller combined with the slewing bearing seat increases the height of the bearing seat to improve the bearing capacity, and the load is received by different raceways. Therefore, under the same stress condition, the diameter of the bearing seat can be greatly reduced, so that the main engine More compact, it is a turntable bearing housing with high load capacity.

    Turntable bearing housings are widely used in large-scale slewing installations such as lifting and transportation machinery, mining machinery, construction machinery, port machinery, ship machinery and high-precision radar.

Company Advantages

The delivery area is not restricted, and can be shipped worldwide
Support OEM customization

Frequently Asked Questions about


Can you make the non-standard model?        


Yes,We can customize according to your requirements


What is your shipping way        


We will help you to choose the best shipping way according to your detail requirements.By sea,by air or by express,etc


Can you offer Certificate of Origin        


Yes,we can offer it


Why did you choose us?        


We provide the best quality bearings with reasonable price, low friction, low noise and long service life.


Do you accept small orders?        



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